Message-id: <DC8B3D25-3BBD-4FF1-B9D1-9F5744316753@lists.apple.com>
Date: Mon, 13 May 2019 14:14:42 -0400
From: Apple Product Security via Fulldisclosure <fulldisclosure@...lists.org>
To: security-announce@...ts.apple.com
Subject: [FD] APPLE-SA-2019-5-13-3 tvOS 12.3

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APPLE-SA-2019-5-13-3 tvOS 12.3

tvOS 12.3 is now available and addresses the following:

AppleFileConduit
Available for: Apple TV 4K and Apple TV HD
Impact: An application may be able to execute arbitrary code with
system privileges
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2019-8593: Dany Lisiansky (@DanyL931)

CoreAudio
Available for: Apple TV 4K and Apple TV HD
Impact: Processing a maliciously crafted movie file may lead to
arbitrary code execution
Description: An out-of-bounds read was addressed with improved input
validation.
CVE-2019-8585: riusksk of VulWar Corp working with Trend Micro's Zero
Day Initiative

Disk Images
Available for: Apple TV 4K and Apple TV HD
Impact: A malicious application may be able to read restricted memory
Description: An out-of-bounds read was addressed with improved bounds
checking.
CVE-2019-8560: Nikita Pupyshev of Bauman Moscow State Technological
University

Kernel
Available for: Apple TV 4K and Apple TV HD
Impact: A malicious application may be able to execute arbitrary code
with system privileges
Description: A use after free issue was addressed with improved
memory management.
CVE-2019-8605: Ned Williamson working with Google Project Zero

Kernel
Available for: Apple TV 4K and Apple TV HD
Impact: A local user may be able to cause unexpected system
termination or read kernel memory
Description: An out-of-bounds read was addressed with improved bounds
checking.
CVE-2019-8576: Brandon Azad of Google Project Zero, unho Jang and
Hanul Choi of LINE Security Team

Kernel
Available for: Apple TV 4K and Apple TV HD
Impact: An application may be able to cause unexpected system
termination or write kernel memory
Description: A type confusion issue was addressed with improved
memory handling.
CVE-2019-8591: Ned Williamson working with Google Project Zero

MobileInstallation
Available for: Apple TV 4K and Apple TV HD
Impact: A local user may be able to modify protected parts of the
file system
Description: A validation issue existed in the handling of symlinks.
This issue was addressed with improved validation of symlinks.
CVE-2019-8568: Dany Lisiansky (@DanyL931)

MobileLockdown
Available for: Apple TV 4K and Apple TV HD
Impact: A malicious application may be able to gain root privileges
Description: An input validation issue was addressed with improved
input validation.
CVE-2019-8637: Dany Lisiansky (@DanyL931)

SQLite
Available for: Apple TV 4K and Apple TV HD
Impact: An application may be able to gain elevated privileges
Description: An input validation issue was addressed with improved
memory handling.
CVE-2019-8577: Omer Gull of Checkpoint Research

SQLite
Available for: Apple TV 4K and Apple TV HD
Impact: A maliciously crafted SQL query may lead to arbitrary code
execution
Description: A memory corruption issue was addressed with improved
input validation.
CVE-2019-8600: Omer Gull of Checkpoint Research

SQLite
Available for: Apple TV 4K and Apple TV HD
Impact: A malicious application may be able to read restricted memory
Description: An input validation issue was addressed with improved
input validation.
CVE-2019-8598: Omer Gull of Checkpoint Research

SQLite
Available for: Apple TV 4K and Apple TV HD
Impact: A malicious application may be able to elevate privileges
Description: A memory corruption issue was addressed by removing the
vulnerable code.
CVE-2019-8602: Omer Gull of Checkpoint Research

sysdiagnose
Available for: Apple TV 4K and Apple TV HD
Impact: An application may be able to execute arbitrary code with
system privileges
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2019-8574: Dayton Pidhirney (@_watbulb) of Seekintoo (@seekintoo)

WebKit
Available for: Apple TV 4K and Apple TV HD
Impact: Processing maliciously crafted web content may result in the
disclosure of process memory
Description: An out-of-bounds read was addressed with improved input
validation.
CVE-2019-8607: Junho Jang and Hanul Choi of LINE Security Team

WebKit
Available for: Apple TV 4K and Apple TV HD
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution
Description: Multiple memory corruption issues were addressed with
improved memory handling.
CVE-2019-6237: G. Geshev working with Trend Micro Zero Day
Initiative, Liu Long of Qihoo 360 Vulcan Team
CVE-2019-8571: 01 working with Trend Micro's Zero Day Initiative
CVE-2019-8583: sakura of Tencent Xuanwu Lab, jessica (@babyjess1ca_)
of Tencent Keen Lab, and dwfault working at ADLab of Venustech
CVE-2019-8584: G. Geshev of MWR Labs working with Trend Micro Zero
Day Initiative
CVE-2019-8586: an anonymous researcher
CVE-2019-8587: G. Geshev working with Trend Micro Zero Day Initiative
CVE-2019-8594: Suyoung Lee and Sooel Son of KAIST Web Security &
Privacy Lab and HyungSeok Han and Sang Kil Cha of KAIST SoftSec Lab
CVE-2019-8595: G. Geshev from MWR Labs working with Trend Micro Zero
Day Initiative
CVE-2019-8596: Wen Xu of SSLab at Georgia Tech
CVE-2019-8597: 01 working with Trend Micro Zero Day Initiative
CVE-2019-8601: Fluoroacetate working with Trend Micro's Zero Day
Initiative
CVE-2019-8608: G. Geshev working with Trend Micro Zero Day Initiative
CVE-2019-8609: Wen Xu of SSLab, Georgia Tech
CVE-2019-8610: Anonymous working with Trend Micro Zero Day Initiative
CVE-2019-8611: Samuel Groß of Google Project Zero
CVE-2019-8615: G. Geshev from MWR Labs working with Trend Micro's
Zero Day Initiative
CVE-2019-8619: Wen Xu of SSLab at Georgia Tech and
Hanqing Zhao of Chaitin Security Research Lab
CVE-2019-8622: Samuel Groß of Google Project Zero
CVE-2019-8623: Samuel Groß of Google Project Zero
CVE-2019-8628: Wen Xu of SSLab at Georgia Tech and
Hanqing Zhao of Chaitin Security Research Lab

Wi-Fi
Available for: Apple TV 4K and Apple TV HD
Impact: A device may be passively tracked by its WiFi MAC address
Description: A user privacy issue was addressed by removing the
broadcast MAC address.
CVE-2019-8620: David Kreitschmann and Milan Stute of Secure Mobile
Networking Lab at Technische Universität Darmstadt

Additional recognition

CoreFoundation
We would like to acknowledge Vozzie and Rami and m4bln, Xiangqian
Zhang, Huiming Liu of Tencent's Xuanwu Lab for their assistance.

Kernel
We would like to acknowledge Brandon Azad of Google Project Zero and
an anonymous researcher for their assistance.

MediaLibrary
We would like to acknowledge Angel Ramirez and Min (Spark) Zheng,
Xiaolong Bai of Alibaba Inc. for their assistance.

MobileInstallation
We would like to acknowledge Yiğit Can YILMAZ (@yilmazcanyigit) for
their assistance.

Installation note:

Apple TV will periodically check for software updates. Alternatively,
you may manually check for software updates by selecting
"Settings -> System -> Software Update -> Update Software."

To check the current version of software, select
"Settings -> General -> About."

Information will also be posted to the Apple Security Updates
web site: https://support.apple.com/kb/HT201222

This message is signed with Apple's Product Security PGP key,
and details are available at:
https://www.apple.com/support/security/pgp/
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